Spectacles With Embedded Segmented Display Comprising Light Guide End

Inactive Publication Date: 2008-12-25
CAMBRIDGE CONSULTANTS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]One application area for this invention is to display information to a wearer of head-mounted eyewear in a convenient head-up display that does not distract the user

Problems solved by technology

Existing designs are often bulky and heavy and most have optical components that protrude from the eyewear lens, obscure part of the user's vision and are susceptible to damage.
However, this system has the disadvantage that the refractive opti

Method used

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  • Spectacles With Embedded Segmented Display Comprising Light Guide End
  • Spectacles With Embedded Segmented Display Comprising Light Guide End
  • Spectacles With Embedded Segmented Display Comprising Light Guide End

Examples

Experimental program
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Embodiment Construction

[0025]FIG. 1 shows one embodiment of the optical device 2 according to the invention incorporated into spectacles 1. The spectacles 1 comprise the optical device in the form of a compound eyeglass window 2, as well as a conventional eyeglass window 6. The windows 2, 6 are mounted in spectacle support frames 4. The thickness of the compound eyeglass window may be less than 1 mm. Additionally, the windows 2, 6 may be curved to provide an aesthetically pleasing design. The optical device of the invention may be used with normal corrective eyesight lenses or with clip-on lenses, for example, if eyesight correction is required.

[0026]A segmented display 3 is provided in the compound eyeglass window 2 and comprises three, seven segment alphanumeric characters, in the embodiment shown. The characters of the display may range in height from 0.1-1 mm and are typically 0.5 mm in height. The total width of the three characters may range from 0.5-3 mm and are typically 1.4 mm in total width. A b...

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PUM

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Abstract

An optical device, such as spectacles or goggles, has a segmented display (3) formed in a transparent substrate by directing light from a number of light sources (15) through respective light guides (14) and reflecting the light out of the transparent substrate at the ends of the light guides (14) to form individually illuminable segments (13). The device has the advantage that an electronically-generated display can be displayed to a viewer in combination with the image transmitted through the transparent substrate simply and relatively inexpensively.

Description

FIELD OF THE INVENTION[0001]The present invention relates to an optical device, in particular to an optical device for displaying information in the field of vision of a viewer. The invention is of particular application to head-mounted imaging devices, such as eyeglasses, goggles, or masks, in which information is incorporated into the image viewed by the wearer by a display device.BACKGROUND OF THE INVENTION[0002]Systems are known for combining an electronically-generated display with the image viewed by the wearer of eyeglasses or goggles. Such systems fall into three main areas: ‘see through’ displays, in which the displayed image is combined with the background image; ‘see around’ displays, in which the displayed image blocks some of the background image; and ‘fully blocking’ displays, in which none of the background image is visible. Existing designs are often bulky and heavy and most have optical components that protrude from the eyewear lens, obscure part of the user's visio...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02C7/00A63B33/00A63B71/06F21V8/00G02B6/00G02B27/00
CPCA63B33/002A63B71/06G02B6/00G02B6/0033G02B27/0172G02B2027/011G02B2027/0178G09F9/3023
Inventor HAZELL, MICHAEL S.MILLAR, NICOLAGOLDER, ROGER F.WILLIAMSON, PAUL
Owner CAMBRIDGE CONSULTANTS LTD
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